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Author:
chen mingchuan
GeoGebra
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龙形曲线-分形龙2
祖冲之的期望:内棋与外棋
科氏力 (Coriolis Force)
盈利與虧蝕
平行線的斜率
Discover Resources
proof RHS
平行四邊形對角線
二次函数与一元二次方程和一元二次不等式
Q3-11
sin(x) 的函數圖形的副本